Use perspective to fix it. The cat and the ramen bowl need something to make them 3d. His neck might be a little long to be anatomically correct, but it doesn't detract. His collar lapel on the left is off. Biggest problem = tiles.

Love it. Suffering from shoujo manga hands. His left ear needs a mark? He would most likely be hunched over when eating ramen. The night sky seems a mite plain in contrast to your nice trees. Notice how the tiles seem to stand up rather than go out?